Since its introduction in 1994 as the first indwelling style voice prosthesis, the Classic Indwelling voice prosthesis has been a premier voice restoration product for laryngectomees worldwide. It is designed with increased esophageal and tracheal flanges for maximum retention and incorporates a radiopaque ring for visualization under x-ray.Sterile: Includes sterile voice prosthesis for primary TEP procedures; with insertion/cleaning accessories. Clinician Placed.Rx Only - Prescription Required